Added extra unit tests.

Author: Dirk Lemstra

Tests/Magick.NET.Tests/Core/Drawables/Paths/PathTests.cs

@@ -14,6 +14,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.Linq;
 using ImageMagick;
 using Microsoft.VisualStudio.TestTools.UnitTesting;
 
@@ -34,21 +35,29 @@ public void Test_Paths()
       {
         List<IPath> paths = new List<IPath>();
         paths.Add(new PathArcAbs(new PathArc(50, 50, 20, 20, 45, true, false)));
+        paths.Add(new PathArcAbs(new PathArc[] { new PathArc(50, 50, 20, 20, 45, true, false) }.ToList()));
         paths.Add(new PathArcRel(new PathArc(10, 10, 5, 5, 40, false, true)));
+        paths.Add(new PathArcRel(new PathArc[] { new PathArc(10, 10, 5, 5, 40, false, true) }.ToList()));
         paths.Add(new PathClose());
         paths.Add(new PathCurveToAbs(80, 80, 10, 10, 60, 60));
         paths.Add(new PathCurveToRel(30, 30, 60, 60, 90, 90));
         paths.Add(new PathLineToAbs(new PointD(70, 70)));
+        paths.Add(new PathLineToAbs(new PointD[] { new PointD(70, 70) }.ToList()));
         paths.Add(new PathLineToHorizontalAbs(20));
         paths.Add(new PathLineToHorizontalRel(90));
         paths.Add(new PathLineToRel(new PointD(0, 0)));
+        paths.Add(new PathLineToRel(new PointD[] { new PointD(0, 0) }.ToList()));
         paths.Add(new PathLineToVerticalAbs(70));
         paths.Add(new PathLineToVerticalRel(30));
         paths.Add(new PathMoveToAbs(new PointD(50, 50)));
+        paths.Add(new PathMoveToAbs(new PointD(50, 50)));
         paths.Add(new PathMoveToRel(new PointD(20, 20)));
+        paths.Add(new PathMoveToRel(20, 20));
         paths.Add(new PathQuadraticCurveToAbs(70, 70, 30, 30));
         paths.Add(new PathQuadraticCurveToRel(10, 10, 40, 40));
+        paths.Add(new PathSmoothCurveToAbs(0, 0, 30, 30));
         paths.Add(new PathSmoothCurveToAbs(new PointD(0, 0), new PointD(30, 30)));
+        paths.Add(new PathSmoothCurveToRel(60, 60, 10, 10));
         paths.Add(new PathSmoothCurveToRel(new PointD(60, 60), new PointD(10, 10)));
         paths.Add(new PathSmoothQuadraticCurveToAbs(50, 50));
         paths.Add(new PathSmoothQuadraticCurveToRel(80, 80));
@@ -61,7 +70,7 @@ public void Test_Paths()
     public void Test_Paths_Draw()
     {
       Test_Paths_Draw(new PathArcAbs(new PathArc(50, 50, 20, 20, 45, true, false)));
-      Test_Paths_Draw(new PathArcRel(new PathArc(10, 10, 5, 5, 40, false, true)));
+      Test_Paths_Draw(new PathArcRel(new PathArc()));
       Test_Paths_Draw(new PathClose());
       Test_Paths_Draw(new PathCurveToAbs(80, 80, 10, 10, 60, 60));
       Test_Paths_Draw(new PathCurveToRel(30, 30, 60, 60, 90, 90));

Tests/Magick.NET.Tests/Core/Drawables/Paths/PathsTests.cs

@@ -14,6 +14,7 @@
 
 using ImageMagick;
 using Microsoft.VisualStudio.TestTools.UnitTesting;
+using System.Collections;
 
 namespace Magick.NET.Tests
 {
@@ -59,5 +60,18 @@ public void Test_Draw_Paths()
         ColorAssert.AreEqual(MagickColors.Fuchsia, image, 90, 2);
       }
     }
+
+    [TestMethod]
+    public void Test_Paths()
+    {
+      Paths paths = null;
+
+      Drawables drawables = paths;
+      Assert.IsNull(paths);
+
+      paths = new Paths();
+      IEnumerator enumerator = ((IEnumerable)paths).GetEnumerator();
+      Assert.IsFalse(enumerator.MoveNext());
+    }
   }
 }